import os
from pathlib import Path

from dotenv import load_dotenv

load_dotenv()

BASE_DIR = Path(__file__).resolve().parent
OUTPUT_DIR = BASE_DIR / "output"

# Fuente de datos:
#   powerautomate = puente HTTP de Power Automate (sin Azure)
#   graph         = Microsoft Graph API directa (requiere Azure)
DATA_SOURCE = os.getenv("DATA_SOURCE", "powerautomate").lower()

# --- Power Automate ---
POWER_AUTOMATE_URL = os.getenv("POWER_AUTOMATE_URL", "")
POWER_AUTOMATE_TIMEOUT = int(os.getenv("POWER_AUTOMATE_TIMEOUT", "300"))

# --- Microsoft Graph (solo si DATA_SOURCE=graph) ---
AUTH_MODE = os.getenv("AUTH_MODE", "delegated").lower()

AZURE_TENANT_ID = os.getenv("AZURE_TENANT_ID", "")
AZURE_CLIENT_ID = os.getenv("AZURE_CLIENT_ID", "")
AZURE_CLIENT_SECRET = os.getenv("AZURE_CLIENT_SECRET", "")

GRAPH_API_VERSION = os.getenv("GRAPH_API_VERSION", "v1.0")
GRAPH_BASE_URL = f"https://graph.microsoft.com/{GRAPH_API_VERSION}"

DELEGATED_SCOPES = [
    "Tasks.Read",
    "User.Read",
    "Team.ReadBasic.All",
    "offline_access",
]

APPLICATION_SCOPES = ["https://graph.microsoft.com/.default"]

# --- Tablero HTML v7 (servidor local) ---
# 0.0.0.0 = accesible en la red local (Chrome en otros PCs). 127.0.0.1 = solo esta PC.
DASHBOARD_HOST = os.getenv("DASHBOARD_HOST", "0.0.0.0")
DASHBOARD_PORT = int(os.getenv("DASHBOARD_PORT", "8765"))
DASHBOARD_CACHE_SECONDS = int(os.getenv("DASHBOARD_CACHE_SECONDS", "8"))
DASHBOARD_USE_EVENTS = os.getenv("DASHBOARD_USE_EVENTS", "true").lower() in {
    "1", "true", "yes", "si",
}
# Intervalo de actualizacion del tablero (segundos). 0 = solo al abrir/recargar.
_refresh = os.getenv("DASHBOARD_REFRESH_SECONDS") or os.getenv("DASHBOARD_FALLBACK_POLL_SECONDS", "8")
DASHBOARD_REFRESH_SECONDS = int(_refresh)
# Minimo entre llamadas en background a Power Automate (evita saturar el flujo).
DASHBOARD_MIN_BACKGROUND_SECONDS = int(os.getenv("DASHBOARD_MIN_BACKGROUND_SECONDS", "5"))
DASHBOARD_WEBHOOK_SECRET = os.getenv("DASHBOARD_WEBHOOK_SECRET", "")
DASHBOARD_WEBHOOK_DEBOUNCE_SECONDS = float(os.getenv("DASHBOARD_WEBHOOK_DEBOUNCE_SECONDS", "1"))
DASHBOARD_VERBOSE = os.getenv("DASHBOARD_VERBOSE", "false").lower() in {"1", "true", "yes", "si"}
# Avisos de campos faltantes (fechas/responsables) en consola del servidor.
DASHBOARD_WARN_PA_FIELDS = os.getenv("DASHBOARD_WARN_PA_FIELDS", "false").lower() in {
    "1", "true", "yes", "si",
}
DASHBOARD_OPEN_BROWSER = os.getenv("DASHBOARD_OPEN_BROWSER", "true").lower() in {
    "1", "true", "yes", "si",
}

# --- Tablero HTML v7 (Google Sheets TSV, opcional) ---
# ID de la hoja (desde la URL /d/XXXXXXXX/edit, no el ID de publicacion /d/e/...)
GOOGLE_SPREADSHEET_ID = os.getenv("GOOGLE_SPREADSHEET_ID", "")
GOOGLE_SHEET_NAME = os.getenv("GOOGLE_SHEET_NAME", "Hoja 1")
GOOGLE_CREDENTIALS_PATH = os.getenv("GOOGLE_CREDENTIALS_PATH", "")


def validate_config() -> list[str]:
    """Devuelve lista de variables faltantes segun la fuente de datos."""
    missing = []

    if DATA_SOURCE == "powerautomate":
        if not POWER_AUTOMATE_URL:
            missing.append("POWER_AUTOMATE_URL")
        return missing

    if not AZURE_TENANT_ID:
        missing.append("AZURE_TENANT_ID")
    if not AZURE_CLIENT_ID:
        missing.append("AZURE_CLIENT_ID")
    if AUTH_MODE == "application" and not AZURE_CLIENT_SECRET:
        missing.append("AZURE_CLIENT_SECRET")

    return missing


def data_source_label() -> str:
    if DATA_SOURCE == "powerautomate":
        return "Power Automate"
    if AUTH_MODE == "delegated":
        return "Microsoft Graph (tu cuenta)"
    return "Microsoft Graph (organizacion)"